National (State Primary) Standard Unit of Pressure for Excess Pressure in the Range from 1E7 Pa to 4E8 Pa

Metrological characteristics

Range

Uncertainty by type A (u_A)

from 1·10⁷ Pa to 4·10⁸ Pa

from 1·10⁷ Pa to 6·10⁷ Pa

from 6·10⁷ Pa to 4·10⁸ Pa

Uncertainty by type B (u_B)

5,5·10^-6

7,5·10^-6

Total standard uncertainty (u_C)

$\sqrt{(8,0·{10}^{-6}{)}^2+(1,8·{10}^{-13}p{)}^2}$

$\sqrt{(1,4·{10}^{-5}{)}^2+(8,2·{10}^{-14}p{)}^2}$

Extended uncertainty (U)

1,0·10^-5 + 8,0·10^-14 р

1,6·10^-5 + 5,1·10^-14 р

Розширена невизначеність (U)

2,0·10^-5 + 1,6·10^-13 р

3,2·10^-5 + 1,0·10^-13 р,

(р – numerical value of pressure in Pa)